Nanoparticle-Free Synthesis of Fluorescent Gold Nanoclusters at Physiological Temperature

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• 作者：Yuping Bao ; Chang Zhong ; Dung M. Vu ; Jamshid P. Temirov ; R. Brian Dyer ; Jennifer S. Martinez
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：August 23, 2007
• 年：2007
• 卷：111
• 期：33
• 页码：12194 - 12198
• 全文大小：458K
• 年卷期：v.111,no.33(August 23, 2007)
• ISSN：1932-7455

文摘

Few-atom gold nanoclusters exhibit strong size-dependent fluorescence emission. For many applications, theseclusters are preferable to quantum dots or organic fluorophores as fluorescent labels. However, the publishedsynthetic procedures to create these nanoclusters involve toxic chemicals, are of low synthetic yield, andconcurrently produce large nanoparticles. Here, we report two methods for high-yield synthesis of goldnanoclusters, utilizing physiological temperature and green chemistry. Blue, green, and red emissive nanoclusterswith pH stability in a range of 6-8 were produced.